Ments



Oct. 7:

H. F. FREEMAN VULCANIZATION APPARATUS Original Filed Aug. 19. 192] 2 Sheets-Sheet. 1

I VEJNTKIE';

H. F. FREEMAN VULCANIZATION APPARATUS Oct. 7. 1924. 1,510,987

Original Filed Aug. 19-. 1921 2 Sheets-Sheet 2 J c {WEN vE UTE Patented (let. 7, 1924.

UNITED, STATES PATENT. OFFICE.

HADLEY r. FREEMAN, or MILWAUKEE, WISCONSIN, ASSIGNOR, .BY MESNE AS IGN- MENTS, TO THE IE'ISK RUBBER COMPANY, or cnfcornn FALLS, MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS.

,VULCANIZATION APPARATUS.

' Application filed August 19, 1921, Serial No. 493,734. Renewed February 27, 1924.

To all whom z'tmary concern:

Be it known that I, IIADLEY F. FREEMAN, a citizen of the United States, anda residentof lililwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in vulcanization Apparatus, of which the following is a specification.

My invention relates to vulcanization apparatus and the principal object of my invention is to provide new and improved apparatus of this type. In the drawings accompanying this specification and forming a part thereof I have shown, for purposes of illustration, one form which my invention may assume. In these drawings:

Figure 1 isa vertical-sectional view of this illustrative apparatus,

Figure 2 is an enlarged plan view of the mold shownin Figure 1, while Figure 3 is a section on the line 3 3 of Figure 2.

The apparatus disclosed herein comprises a heater 11 containing a plurality of molds 12 and comprising a shell 13 provided at'i'ts upper end with a top ring l-i'and supported by a heater base'not shown. The top ring 1 1 is adapted to receive a cover 17 while a ram cylinder not shown carries a ram 19 which carries a table20 and contains a cavity 21.

The heater cover 17 and ram table 20 are constructed to interrupt communica tion between the space 38 within the inner peripheries of the molds 12 and the space 39 outside the molds and in the embodiment herein illustrated communication between the spaces 38 and 39 is interrupted by a plate 26 carried by the lower face of the heater cover 17, unitary therewith, and of such size as to overlie the molds 12, and by a plate 28 secured to the table 20, unitary therewith, and of such size as to overlie the molds 12. The segregation of the inner chamber 38 is completed by so construct ing the molds 12, heater cover 1.7, and ram table 20, that a tight joint is provided between each mold and the adjacent body and in the drawings the upper face 31 of each mold 12 and of the ram table plate 28 is shown as provided with a dovetail annular recess 30 carrying a packing ring 32 having a dovetail portion 33 adapted to seat in the recess 30 and a protruding portion 34 adapt ed to engage the adjacent surface. Each upper face is provided with a second ring 35 similar to the ring 32 but segmental and inserted only to balance the strains imposed upon the parts by the ram action.

From the above description it will be understood that the chamber 38 within the inner periphery of the mold stack is segregated from the space 39 outside the stack and that the heat and pressure within the chamber 38 may differ from the heat and pressure in the outside space 39.

I may utilize this feature to maintain the inner chamber cool while heat is applied to the outer chamber and to accomplish the water to maintain the low temperature.

Or I may insert into the inner chamber a coil 40 through'which fluid may be passed to thereby cool the fluid within the chamber 38. In either event I may increase the coolingaction by using a core 41 provided with a cavity 42 connected to the chamber 38 by one or more ducts 43 so that the fluid: within the chamber 38 may circulate freely within the core 41.

I claim:

1. In combination, an annular article, means adapted to form a fluid tight closure over the opening in one face of said article, means adapted to form a fluid tight closure over the opening in the other face of said article, a container within the chamber so formed, and a duct connecting the interior of said article with said chamber.

2. In combination, a plurality of articles arranged to form a tube, means adapted to form a fluid tight closure over one end of said tube, means adapted to form a fluid tight closure over the other end of said tube, a container within the chamber so formed, and ducts connecting the interiors of said articles with said chamber.

3. In combination, an annular article, means adapted to form a fluid tight closure over the opening in one face of said article, means adapted to form a fluid tight closure over the opening in the other face of said article, a cooling coil within the chamber so formed, and a duct connecting the interior of chamber.

4. In combination, a plurality of articles arranged to form a tube, means adapted to form a fluid tight closure over one end of said article with said said tube, ineans adapted to form a fluid tight closure over the other end of said HADLEY r. FRlqJEMAN. 

